Thomas donahue



(Model.) 4 v T. DONAHUE, J. ROCHE, GOODWIN'& W. W. GONE.

LOCK. r

No. 312,827. Patented Feb. 24, 1885.

WITNESSES ATTORNEYS.

rrn drains Parenti Ormea.

THOMAS DONAHUE, JAMES ROCHE, VILLARD T. GOODWIN, AND V/ILLIAM W. GONE,OF TERRYVILLE, CONNECTICUT, ASSIGNORS TO THE EAGLE LOCK COMPANY, OF SAMEPLACE.

SPECIFICATIONrformiug part of Letters Patent No. 312,827, dated February24:, 1885.

Application filed January 7, 1884.

To @ZZ whom, it may concern:

Be it known that we, THOMlis DONAHUE, JAMEs ROCHE, WILLARD T. GOODWIN,and WILLIAM W. CoNE,ofTerryville, inthe county of Litcheld and State ofConnecticut, haveinvented a new and Improved Lock, of which thefollowing is a full.clear, and eXact description.

Heretofore cabinet-locks provided with a iO projecting tubular orbarrel-shaped key-guide could not bemortised into desks, drawers, Src.,as the projecting guide was made integral with the lock; and, further,it has been very dimcult to fit a mortise-lock in such a manner that I5the key would not bind, and frequently locks had to be reset severaltimes before they were held in the drawer or other article offurniturein such a position that the key could enter freely.

The object of our invention is to provide a new and improved mortisecabinet-lock having a key-guide which extends to the front of thedesktop, drawer, or other article; and a further Object of our inventionis to provide a 2 5 lock which automatically adj usts itself in such amanner that the key can pass into the same without binding; and anotherobject of our invention is to provide alock which locks automaticallywhen the desk-top is swung down, 3o the drawer is closed, Sie.

The invention consists in a mortise cabinetlock provided with aremovable key-guide.

The invention further consists in the combination, with a lock and itsremovable key- 3 5 guide, of an escutcheonplate, in which the saidkey-guide is held.

The invention further consists in a lock provided with a sliding` boltresting on a pivoted L-shaped piece, on the upper edge of which 4oL-shaped piece the bolt is adapted to slide, whereby the bolt can beswung downward and then moved laterally.

The invention also consists in numerous parts and details and variouscombinations of the same, as will be fully described and set forthhereinafter.

Reference is to be had to the accompanying (Model.)

' in which similar letters of reference indicate corresponding parts inall the figures.

Figure l is a face view of one of our iniproved locks, the top platebeing removed and parts being broken out and others shown in section,the lock being shown in place. Fig. 2 is a cross-sectionalelevation ofthe lockY 5 5 and part of the piece of furniture in which it is held.Fig. 8 is a i'rontview ofthe escutcheon and of part of the desk or otherpiece of furniture in which the lock is held, parts being broken out andothers shown in section. 6o Fig. Liis an inside view of the escutcheonof the lock;

The lock-casing A is held ina mortise in a drawer or door in the bottomedge of a desktop, or in any other suitable part of any other piece offurniture, in the usual manner, the faceplate or selvageB of the casin gbeing iiush with the drawer, desk-top, or other article of furniture, asshown. Two rivets, a, project downward from the face-plate or selvage B7o through the top of the casing, which rivets are each provided with alongitudinal head,

I), on the under side, the said heads being parallel with the selvage,and, on the upper edges of the heads, thetop A of the lockcasing rests.The rivets a are of such length, and are fastened to the face-plate orselvage B in such a manner, that the top plate, A', of the casing is notdrawn up closely to the under side of the selvage-that is, the lock- 8Ocasing is suspended from the selvage by means of the headed studs orrivets c, and can swing slightly in the direction of the longitudinalaxis of the lock-casing On the said rivets. To permit of such swingingmovement of the casing, the heads of the rivets are made parallel withthe selvage or face 4plate and at right angles to the swinging movementof the casing. A hole, B', is bored from the front Of the top or drawerC back to 9o the mortise for receiving the lock. The keyguide consistsof a rod, D, provided with a longitudinal groove, D', through which thekey can be passed. On the outer end ofthe key-guide a disk, D, isformed, On the rear g5 drawings, forming part of this specification,

side of the escutchconeplate E, provided with l inner surface of thedisk D2, on the outer end ofthe key-guide, for the purpose of holdingthe key-guide to the escutcheon-plate, and at the same time permitting`the` said key-guide to revolve in the said escutcheon-plate. Thelock-casing A is provided in its front and rear with apertures forreceiving the keyguide.

To fit the lock in a desk or other piece of furniture,the lock is simplyplaced in its mortise and the key-guide is placed inthe hole B, theinner end of the key-guide passing into the front aperture of thelock-casing or entirely through the said lockcasing, as may be desired.

As the key-guide is made detachable from the lock, the lock can readilybe mortised, which could not be done if thekey-guide were permanentlyattached to the casing. As has been stated before, the casing issuspended from the selvage or face-plate B, and always hangs vertically.If the key-guide is passed through the lock-casing, it will hold thesaid casing in such a position that the key-guide will be at rightangles to the casing. If the lock-casing were secured rigidly to theselvage, the casing would have to be adjusted very finely in itsmortise, so thatthe-keyv guide would be at right angles to the casing;

but if the casing is pivoted to the selvage or suspended from the same,as described, the casing is adj usted automatically as soon as thekey-guide is introduced, and is held in place by the key-guide. If thekey-guide is not exactly at right-angles to the casing, the keyintroduced through the key-guide will bind on the lock, thereby makingit difficult to throw the bolt, and causing the wear of parts of thelock, as well as of the edges of the key. A catch-bolt, G, having abeveled end projects through a slot in the face-plate or selvage B,

which slot is of such length that the bolt can move in the direction ofthe length of the selvage. The bolt has a longitudinal slot, g, throughwhich a pin, H, passes into the lockcasing, and the said bolt is alsoprovided with a shoulder, H, against which the bit of the key can acttothrow the bolt. The bottom edge of that side/of the bolt G opposite theone provided with the slot `g rests upon an L-shaped plate, J, pivotedto the lock-casing, which plate J- is provided with a slightly-curvedupwardly-projecting slot, h, through which a pin, K, passes into theside ofthe lock-casing. The bolt G is adapted to slide on the upper endof the said L-shaped piece or plate J. A coilspring, L, provided withtwo projecting ends is held on a pin, M, of the casing, the end L oithe'said spring acting on the under edge of the L-shaped plate J andpressing the said plate upward against the bottom of 'the bolt G, andthe upper end, L2, of the said spring pressing against theend of thebolt G and forcing the same in the direction of the arrow a. On thelock-casing a series of tumblers, N, are pivoted, each of which isprovided witha spring, N', resting against the stud O, whereby the saidtumblers will be pressed downward. The ends of the tumblers rest on apin, P, projecting from the lock-casing. The tumblers are each providedwith an L-shaped slot, R, .the upwardly-projecting shank of which is ashort one. A stud, S, projecting from the bolt G, passes through theupwardly-projecting shanks of the slots B. A catch-plate, T, is providedwith a longitudinal slot, T, which slot has that end that comes inContact with the beveled end of the bolt G beveled.

The operation .is as lfollows: It' the beveled edge of the catch-plate Tcomes in contact with the beveled end of the bolt G, it first pressesthe bolt downward, and the bolt swings the plate or piece J downwarduntil the stud K rests against the upper end of the slot h inthe saidpiece J. The plate or piece J can then move no farther. By the downwardmovement of the bolt the stud S is moved out ofthe short shanks of theL-shaped slots B, and the bottom of the said stud rests on the inclinedbottoni edges' of the long shanks of the said slots It. If more pressureis brought on the bolt, the bolt will sliderdownward diagonally to theright, the bolt sliding on the upper edge of the plate J and the stud Ssliding on the inclined bottoms of the slots R in the tumblers. The pinP, on which the ends of the tumblers rest, prevents the stud S fromswinging the tumblers downward. "When the end of the slot T in thecatch-plate T has passed the bottom of the bevel formed on the end otthe catchbolt G, the pressure on the bolt will be relievedand the end L2of the spring will press ythe bolt to the left until the stud S is atthe short Shanks of the slots R, and then the end ICO IXO

L of the spring L will press the plate J and the bolt upward. Byswinging down that part containing lthe catch-plate T on the bolt, or byswinging the bolt down on that part containing the catchplate T, thelock is locked automatically, and in being locked automatically thetumblers remain stationary, and the bolt rst swings downward verticallyand then slides diagonally. If the lock is unlocked by means ofthe key,the key raises the tumblers and then .swings the bolt in the inversedirection of the arrow a in the usual manner.

We take special notice of the fact that the tumblers are raised when thelock is unlocked by means of the key, and that the tumblers remainstationary and the bolt is pressed down when the lock is closedautomatically.

Having thus described our invention, we claim as vnewand desire tosecure by Letters Patentl. The combination, with a mortse cabinet ordrawer lock provided with apertures in its rear and front, of aremovable key-guide fitting loosely in said apertures, and having asmooth outer surface throughout its entire length, and provided with alongitudinal slot for the key, substantially as herein shown andAdescribed, whereby provision is made for adjusting the lock on thekey-guide to adapt the same to different thicknesses of wood, as setforth.

2. The combination, with a mortise cabinet or drawer look, of aremovable cylindrical key-guide having aV longitudinal slot forreceiving and guiding the key, and provided at its front end with ahead, and an escutcheonplate provided with an inwardly-projecting neckin which the head of the key-guide revolves freely, the inner end of thekey-guide projecting from the back of the lock, substantially asdescribed.

8. The combination, with a mortise cabinet or drawer lock provided withapertures in its rear andA front, and suspended in the mortise from theselvage, of a removable key-guide fitting loosely in said apertures, andhaving a smooth outer surface throughout its entire length, and providedwith a longitudinal slot for the key, substantially as herein shown anddescribed, whereby provision is made for allowing the lock-casing toadjust itself in the mortise and on the key-guide, as set forth.

4. The combination,with a mortise cabinetdesk or drawer lock, of akey-guide having a longitudinal groove in the stem, and having a disk onits outer end, an escutcheon-plate provided with a tube for receivingthe said disk, and'of prongs formed of the said tube and pressed overthe disk on t-he key-guide, substantiall y as herein shown anddescribed.

5. Ina lock,the combination,with a sliding 4o catch'bolt, of a pivotedL-shaped piece or plate adapted to swing toward and from the outer edgeof the casing, and on which piece the bolt is adapted to slide in thedirection of its length, substantially as herein shown and described.

6. In a lock, the combination,with a sliding catch-bolt, of a pivotedL-shaped piece or plate on which the catch-bolt rests, tumblers pivotedon the lock-casing and resting on a stud of the lock, andof a studprojecting through the L-shaped slots in the tumblers, substantially asherein shown and described.

7. In a lock, the combination,with asliding catch-bolt provided with alongitudinal slot, of a pivoted L-shaped piece provided with anupwardly-projecting slot, through which slots in the bolt and L-shapedpiece pins project from the lock-casing, tumblers pivoted on the vlock-casing and provided with L-shaped slots, 6o a pin projecting fromthe casing, on which pin the tumblers rest, and of a pin or studlprojecting from the bolt through the L-shapedl slots in the tumblers,and of springs acting on the boltand on the L-shaped piece, sub- 65stantially as herein shown and described.

rlHOMAS DONAHUE. JAMES ROCHE. VILLARD T; GOODVIN. WILLIAM W. GONE.

Witnesses:

JAsoN C. FENN, ROLLIN J. PLUMB.

